From Clean Room to Machine Room: Commissioning of the First-Generation BrainScaleS Wafer-Scale Neuromorphic System

• URL: http://arxiv.org/abs/2303.12359v1
• Date: Wed, 22 Mar 2023 07:50:51 GMT
• Title: From Clean Room to Machine Room: Commissioning of the First-Generation BrainScaleS Wafer-Scale Neuromorphic System
• Authors: Hartmut Schmidt, Jos\'e Montes, Andreas Gr\"ubl, Maurice G\"uttler, Dan Husmann, Joscha Ilmberger, Jakob Kaiser, Christian Mauch, Eric M\"uller, Lars Sterzenbach, Johannes Schemmel, Sebastian Schmitt
• Abstract summary: BrainScaleS-1 is a neuromorphic system for emulating large-scale networks of spiking neurons. A fault-tolerant design allows it to achieve wafer-scale integration despite unavoidable analog variability and component failures.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The first-generation of BrainScaleS, also referred to as BrainScaleS-1, is a neuromorphic system for emulating large-scale networks of spiking neurons. Following a "physical modeling" principle, its VLSI circuits are designed to emulate the dynamics of biological examples: analog circuits implement neurons and synapses with time constants that arise from their electronic components' intrinsic properties. It operates in continuous time, with dynamics typically matching an acceleration factor of 10000 compared to the biological regime. A fault-tolerant design allows it to achieve wafer-scale integration despite unavoidable analog variability and component failures. In this paper, we present the commissioning process of a BrainScaleS-1 wafer module, providing a short description of the system's physical components, illustrating the steps taken during its assembly and the measures taken to operate it. Furthermore, we reflect on the system's development process and the lessons learned to conclude with a demonstration of its functionality by emulating a wafer-scale synchronous firing chain, the largest spiking network emulation ran with analog components and individual synapses to date.

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